Meredith lives at home with her mother, Ellis, who's married to Webber, plus Callie and Owen have three kids.

Meredith is Dr. Webber instead of Dr. Grey, Callie and Owen are married and have three kids, Derek and Bailey are punching bags for Chief Ellis Grey and that's just from the first 10 minutes of Thursday's Grey's Anatomy "If/Then" episode.

In an extended promo for the upcoming alternate universe -- which unspools after Meredith (Ellen Pompeo) drifts off to sleep as she ponders what her world would look like had her mother not had Alzheimer's -- Alex (Justin Chambers) and Meredith are engaged, Callie (Sara Ramirez) and Arizona (Jessica Capshaw) are at odds and April (Sarah Drew) is Mer's "person."

Oh, and everyone hates Cristina (Sandra Oh), while April is still pining for Charles (Robert Baker). Perhaps the biggest change, however, is that the opening credits now match Meredith's pink, preppy persona.